102112045 has 32 divisors (see below), whose sum is σ = 148838400. Its totient is φ = 65753856.

The previous prime is 102112009. The next prime is 102112063. The reversal of 102112045 is 540211201.

It is not a de Polignac number, because 102112045 - 2⁹ = 102111533 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36196 + ... + 38914.

It is an arithmetic number, because the mean of its divisors is an integer number (4651200).

Almost surely, 2^102112045 is an apocalyptic number.

It is an amenable number.

102112045 is a deficient number, since it is larger than the sum of its proper divisors (46726355).

102112045 is a wasteful number, since it uses less digits than its factorization.

102112045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2797.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 102112045 is about 10105.0504699383. The cubic root of 102112045 is about 467.4038922801.

Adding to 102112045 its reverse (540211201), we get a palindrome (642323246).

The spelling of 102112045 in words is "one hundred two million, one hundred twelve thousand, forty-five".